Onkyo TX 844 Service Manual

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Onkyo TX 844 Service Manual

Extracted text from Onkyo TX 844 Service Manual (Ocr-read)


Page 1

ONKYO SERVICE MANUAL

Ref. No. 0M3366

QUARTZ SYNTHESIZED
TUNER AMPLIFIER

MODEL TX-844

Ellack model

BHUD. BHUDN. BHUDC

12(lV AC fiOHZ

BHUG

220V AC. SOHZ

BHUW

lZO/ZZUV AC. 50/60HZ

BHUOA BHUQB

240V AC SUHZ

SAFETYRELATED COMPONENT WARNINGII
COMPONENTS INDENTIFIED BY MARK AON
THE SCHEMA'I'IC DIAGRAM AND IN THE
PARTS LIST ARE CRITICAL FOR RISK OF FIRF
AND ELECTRIC SHOCK. REPLACIi 'IIILSl.
COMPONENTS WITH ONKYO PARTS WHOSE
PARTS NUMBERS APPEAR AS SHOWN IN THIS
MANUAL.

MAKE LEAKAGE-CURRENT OR RESISTANCE
MEASUREMENTS TO DETERMINE THAT
EXPOSED PARTS ARE ACCEPTABLY
INSULATED FROM THE SUPPLY CIRCUIT
BEFORE RETURNING THE APPLIANCE TO
THE CUSTOMER.

ONKYO®
AIIIIIII BflMPflIIIIIIS

TABLE OF CONTENTS

Specifications ..............................................
Service procedures

Exploded vicw

Parts list ........
Block diagram - 120V model 7


Block diagram 7 Other models 7 ........ 8
Connection diagram of microproc 10
Block diagrams of 1C 13

Adjustment procedures

PC board view/parts list

Display/Volume ......................

FM/AM tuner and selector Circuit .

Other pt hoards ,
Schematic diagram

IZOV model 7 Tuner section 7

7 Amplifier section

ZZUV model - Tuner section 7

7 Amplitier section

Packing View .............................


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